{"product_id":"oem-goodman-43-burner-orifice-for-ads81155cna-b4089343-1","title":"OEM Goodman #43 Burner Orifice for ADS81155CNA — B4089343","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B4089343 burner orifice\u003c\/strong\u003e is the genuine OEM #43-drill gas spud for \u003cstrong\u003eADS81155CNA\u003c\/strong\u003e furnaces. The orifice meters the exact volume of gas fed into each in-shot burner, setting the furnace's firing rate and BTU output. A worn, plugged, or wrong-size orifice causes lazy yellow flames, sooting, low heat output, or over-firing — installing the correct #43 spud restores the factory-rated burn.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOrifice drill size: #43\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B4089343\u003c\/li\u003e\n\u003cli\u003eFits: Goodman ADS81155CNA gas furnace\u003c\/li\u003e\n\u003cli\u003eThread: Standard Goodman burner-manifold spud\u003c\/li\u003e\n\u003cli\u003eFuel: Sized for natural gas applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eDrill size is everything on an orifice — a few thousandths of an inch changes the firing rate and combustion quality. This \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e spud is laser-stamped #43 and gauged at the factory. Generic spuds are often mismarked or burr-edged, which alters gas flow. Always match the orifice to the model's rating plate.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — the orifice threads into the gas manifold behind the burners. Shut off gas, remove the manifold, and torque the new spud snug without over-tightening. Verify manifold pressure after install. Best handled by an HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057499324787,"sku":"GOODMAN-B4089343","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-ads81155cna-b4089343-1","provider":"National HVAC Parts","version":"1.0","type":"link"}